查询词典 manganous

Anthraquinone is prepared by the liquid phase oxidation of anthracene with oxygen in the presence of cobaltous salt,manganous salt and bromide.

在液相中，钴盐、锰盐、溴化物催化氧气氧化蒽制取蒽醌，当压力为0.5～0.8 MPa，溶剂是芳香性卤代烃和丁酸的混合物（其中丁酸质量分数为15％～20％）时，蒽醌的产率可达90％，纯度99.2％。

And manganic manganous oxide is the main material to produce ferrite.

而四氧化三锰是生产软磁铁氧体的重要原料。

The manganic manganous oxide is prepared from the purified manganese sulfate solution using hydrogen peroxide as oxidant under alkali medium of ammonia solution.

研究了从软锰矿制备硫酸锰，在碱性溶液中，以过氧化氢为氧化剂，制备高比表面优质四氧化三锰的新工艺。

Now in China the primary method to produce manganic manganousoxide is using the electrolytic product of manganese as raw stuff,the product produced though this method is high-quality and can meet the electronic grade manganic manganous oxide standard.

目前，我国四氧化三锰主要是以电解金属锰为原料来生产，该法生产出来的四氧化三锰杂质含量低、质量好，能较好地达到电子级四氧化三锰标准要求。

Finally, the pure solution of manganous sulfate was prepared.

最后得到比较纯净的硫酸锰溶液。

A study on exchange-adsorption of aluminium and manganous ions under conditions close to the field was carried out.

研究了贴近自然的稀溶液条件下铝、锰离子交换吸附的行为，结果是：铝、锰与钙、钾离子的交换吸附仍符合一般的离子交换规律，但也不遵守比例定律。

The results illustrate the facts that:(1) The best catalyst among them is manganous sulfate,(2) compound catalyst consisting of a mixture of metal sulfates in proper proportion is better than any one of them used alone.

本文研究的第二种脱硫新工艺是采用MnSO〓等催化剂使SO〓经过液相催化成SO〓进而形成稀硫酸，实验发现MnSO〓相对于ZnSO〓和〓有较好的催化作用，三者按一定比例组成的复合催化剂的催化能力优于单组分的催化能力。

Exchange-Adsorption Behaviours of Aluminium and Manganous Ions in Dilute Solution

篇名 红壤对铝锰离子的吸附特征V。稀溶液中铝锰离子的交换吸附行为

Results show that the adoption of stainless steel anode wrapped with anion membrane improves the bath stability and avoids the oxidation of manganous ions.

结果表明：采用不锈钢阳极和阴离子膜可提高镀液稳定性，防止二价锰被氧化，加入氢氧化钡可消除因补充锌锰离子而积累的硫酸根离子。

Herein, zinc-manganese alloy bath containing sulfate and citrate ions was selected, and the effect of anodes, manganous ions and continuous operation on bath stability was studied.

选择硫酸盐-柠檬酸盐体系锌锰合金镀液，研究了阳极、二价锰离子以及连续作用等因素对镀液稳定性的影响。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。